.lt-main {
  height: 100%;
  position: relative;
}
.lt-main .index-nav {
  padding: 0 10px 20px;
}
.lt-main .index-nav li {
  width: 33.33%;
  float: left;
}
.lt-main .index-nav li img {
  width: 100%;
  display: block;
}
.lt-main .index-product {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 8px;
}
.lt-main .index-product .item {
  width: 48%;
  text-align: center;
  border: 1px solid #ccc;
  padding: 5px;
  margin: 5px 0;
}
.lt-main .index-product .item img {
  width: 80%;
}
.lt-main .index-product .item .new {
  color: red;
}
.lt-main .index-product .item .old {
  text-decoration: line-through;
}
